docs: def get_factory_kwargs(self):
          """
          Returns the keyword arguments for calling the formset factory
          """
          kwargs = {}
          kwargs.update({
              'can_delete': self.can_delete,
              'extra': self.extra,
              'exclude': self.exclude,
              'fields': self.fields,
              'formfield_callback': self.formfield_callback,
              'fk_name': self.fk_name,
          })
          if self.formset_class:
              kwargs['formset'] = self.formset_class
  
          if self.child_form:
              kwargs['form'] = self.child_form
          return kwargs